Database SQL JDBC Java

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
public class Main {
  public static void main(String[] args) throws Exception {
    Class.forName("com.mysql.jdbc.Driver");
    Connection connection = DriverManager
        .getConnection("jdbc:mysql://localhost/testdb", "root", "");
    Statement statement = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
        ResultSet.CONCUR_READ_ONLY);
    ResultSet resultSet = statement.executeQuery("SELECT * FROM products");
    while (resultSet.next()) {
      String productCode = resultSet.getString("product_code");
      int row = resultSet.getRow();
      System.out.println(row + ". " + productCode);
    }
    connection.close();
  }
}